KDC Filtration System

Great-Tasting Water Anytime You Want It

Does your water have a strong sulfur-like taste and offensive odor? Bad tasting and smelly water can impact our lives on a day-to-day basis, whether you’re drinking it, washing the dishes, or brushing your teeth. It’s time you get an effective solution to that problem! The KDC Filtration System is designed to be used as a substitute stand-alone whole house filtration system, or in conjunction with a water softening unit. It uses a four-stage filtration process to lessen and remove contaminants and heavy metals leaving you with fresh, clean water every time.

The KDC System is a whole home water filtration system that uses a combination of Coconut Shell Activated Carbon, Quartz, and KDF 55 Media to lessen hydrogen sulfide, chloramines, dissolved organic compounds and their chlorinated by-products. The result? Great tasting, fresh water!

If you want quality water from your pipes, call the professionals at JustUs Softening. Our dedicated team is highly knowledgeable and will test your water quality as well as help you choose a properly sized system for your household needs.

Four-Stage Filtration Process by KDC

The KDC Filtration system uses a four-stage filtration process to remove a large number of contaminants and “heavy metals”.

KDC Filter Stage 1 (Quartz Under Bed)
The quartz under the bed material has a spherical shape that promotes high water volume and distribution. It has positive chemical properties and is a river washed, naturally occurring, glacial deposit product, helping improve water quality throughout the filtration process.

KDC Filter Stage 2 (Copper-Zinc Alloy Processed Medium)
When utilized in water treatment systems, the media goes through a process called oxidation-reduction or redox. It’s a chemical reaction in which electrons are moved between molecules. This is a highly reliable process and is 98% effective in removing inorganic water solubles and heavy metals that can threaten public health. At this stage, your water is being filtered through the KDF-55 media.

KDC Filter Stages 3 and 4 (Activated Carbon)
The third and fourth stages work by holding and attracting certain chemicals as water passes. Activated carbon is a porous material, making it excellent at absorbing contaminants. At this stage, your water passes through high capacity coconut shell activated carbon and catalytic high activated coconut shell carbon.

KDF 55 Process Medium

The KDF 55 medium is designed to reduce or remove magnesium, calcium carbonate, chlorine, and other soluble heavy metals in water. It can eliminate over 99% of chlorine by turning dissolved chlorine gas to water-soluble chloride ions. KDF media is incorporated into tap cartridges and shower filters for chlorine removal in point-of-use applications.

It’s also used in the pretreatment approach, main treatment, and wastewater application to improve system life and lessen heavy hydrogen sulfide, chlorine, and heavy metal contamination.

The Benefits of Using KDF 55 Process Media: 

  • Recyclable
  • Available in 4 granular styles
  • Outperforms silver-impregnated carbons
  • No required EPA registration
  • Efficient elimination of a vast range of contaminants
  • Cost-effective
  • Improves efficiency and lives of carbon (GAC) filters
  • Remains efficient even at a higher water temperature

KDF 55 is one of the best materials you can use to improve water quality naturally and economically. It also lasts longer compared to carbon-only units, since it doesn’t allow bacterial growth and eliminates more inorganic matter.

Catalytic-High Activated Carbon (CTA-HAC)

Catalytic-High Activated Carbon (CTA-HAC) is a high-quality coconut shell-based material used in applications requiring hydrogen sulfide, chloramine, and dissolved organic compound reduction. It is used in water filtration processes and can work with a vast range of pH levels.

Physical Properties

  • Color – Black
  • Mesh Size – 12 x 40
  • Bulk Density – 28 lbs./cu. Ft.
  • Effective Size – 0.55-0.75 mm
  • Ash Content – Max 4%
  • Iodine Number – 1,000 mg/g
  • Moisture as packed – Max 5%
  • pH 10

Certifications and Approvals

  • NSF/ANSI Standard 61
  • AWWA B604-96
  • EN12915


  • Larger surface area for efficiency and high capacity
  • Balanced pore structure delivers a more effective adsorption range
  • Highly durable
  • High carbon and low ash content
  • Gives a high polish to filtered water

Coconut Shell-High Activated Carbon (CS-HAC)

Coconut Shell-High Activated Carbon (CS-HAC) can be used in a wide range of water treatment applications requiring the reduction of odors, tastes, and chlorine. The result is fresh, clean water with no weird odor and taste. Though, just like any other machine, it requires some form of maintenance.

After a period of time, you need to backwash it to eliminate accumulated suspended matter and re-grade the filter bed. It will need immediate replacement once the filter bed loses the capacity to lessen odor and taste.

Physical Properties

  • Color – Black
  • Mesh Size – 12 x 40
  • Bulk Density – 28 lbs./cu. Ft.
  • Iodine Number – 1,000 mg/g
  • Moisture as packed – 3%
  • pH 10
  • Effective Size – 0.55 – 0.75 mm
  • Ash Content – 2.5%

Certifications and Approvals

  • NSF/ANSI Standard 61

Certifications and Approvals

  • Can be used for filtering waters that have a range of pH levels
  • Big surface area resulting in efficiency and high capacity
  • Balanced pore structure, giving a more effective absorption range level
  • Highly durable
  • High carbon-low ash content 
kdc water filtration system

Get Started With a Free Quote!

veteran owned business icon (2)
nsf water standard certified logo

Get Your KDC Filtration System Today!

At JustUs Water Softening & Filtration, we take pride in providing you with top of the line filters & softeners at affordable prices. We make the process seamless for you from the initial call all the way through. And of course, we guarantee our work so you don’t have to worry about costly repairs. For a free quote or to have your water inspected and tested, give us a call now! 

JustUs water softening logo
  • Affordable water softeners & filters
  • Transparent pricing
  • More than 50-years of experience
  • Veteran owned & operated
  • Our team members are standing by right now to give you a free, instant quote over the phone!
Get in Touch

(512) 758-7913

Open Hours

7am – 5pm M-Sa
24/7 Emergency Service

Our Office

1622 Belvedere Pl
Round Rock, TX 78665

Our Products

Fusion XT Softener
KDC Filtration System
Nugen 5
WaterMaker 5
Pro eXstream Softener
Upflow Carbon Filter

Email Us